Heat Transfer Heat transfer efficiency leading of energy conservation in a heat exchanger can be achieved by Increasing the tube length Keeping the heat transfer surface clean Enhancing the fluid pumping rate None of these Increasing the tube length Keeping the heat transfer surface clean Enhancing the fluid pumping rate None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a given ambient air temperature with increase in the thickness of insulation of a hot cylinderical pipe, the rate of heat loss from the surface would Increase Decrease First decrease and then increase First increase and then decrease Increase Decrease First decrease and then increase First increase and then decrease ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following parameters is increased by use of finned tube in a multipass shell and tube heat exchanger? Convective heat transfer co-efficient Tube side pressure drop and the heat transfer rate Effective tube surface area for convective heat transfer All of these Convective heat transfer co-efficient Tube side pressure drop and the heat transfer rate Effective tube surface area for convective heat transfer All of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a forward feed multiple effect, the pressure build up will be highest at the inlet of the last effect least at the outlet of the last effect least at the inlet of the first effect highest at the outlet of the last effect highest at the inlet of the last effect least at the outlet of the last effect least at the inlet of the first effect highest at the outlet of the last effect ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer An ejector is used to Increase temperature Remove condensate Increase pressure None of these Increase temperature Remove condensate Increase pressure None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Thermal diffusivity of a material Is defined as K/ρ . Cp Is the ratio of thermal conductivity to thermal capacity All of these Has the unit m² /sec Is defined as K/ρ . Cp Is the ratio of thermal conductivity to thermal capacity All of these Has the unit m² /sec ANSWER DOWNLOAD EXAMIANS APP
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